甲比乙少四分之一,丙比乙多四分之一,则用最简整数比表示甲:乙:丙= 甲比乙多四分之一则乙比甲少多少
\u7532\u6570\u662f\u4e59\u6570\u76848\u5206\u4e4b3\uff0c\u4e59\u6570\u662f\u4e19\u6570\u76847\u5206\u4e4b4\uff0c\u4e19\u6570\u4e0e\u7532\u6570\u7684\u6700\u7b80\u6574\u6570\u6bd4\u662f\u591a\u5c11\u554a\uff1f\u8bbe\u4e19\u6570\u4e3aa,\u5219\u4e59\u6570\u4e3a4/7 *a\uff0c
\u7532\u6570\u4e3a3/8*4/7*a
=3a/14
\u90a3\u4e48\uff0c\u4e19\uff1a\u7532
=a\uff1a3a/14
=1\uff1a3/14
=14\uff1a3
\u6240\u4ee5\uff0c\u4e19\u6570\u4e0e\u7532\u6570\u7684\u6700\u7b80\u6574\u6570\u6bd4\u662f14\uff1a3\u3002
\u7532\u6570\u6bd4\u4e59\u6570\u591a\u56db\u5206\u4e4b\u4e00\uff0c\u90a3\u4e48\u4e59\u6570\u6bd4\u7532\u6570\u5c11\u51e0\u5206\u4e4b\u51e0\uff1f\u5b66\u6e23\u79d2\u7b54\u56db\u5206\u4e4b\u4e00
乙数∶丙数＝1∶﹙1＋1/4﹚＝4∶5
甲数∶乙数∶丙数＝3∶4∶5
甲：乙=3:4
丙：乙=5:4
所以甲：乙：丙=3:4:5
3:4:5
3:4:5
绛旓細涓欙細涔=5:4 鎵浠鐢诧細涔锛氫笝=3:4:5
绛旓細瑙ｏ細鐢叉暟鈭涔鏁帮紳锕1锛1/4锕氣埗1锛3鈭4 涔欐暟鈭涓鏁帮紳1鈭讹箼1锛1/4锕氾紳4鈭5 鐢叉暟鈭朵箼鏁扳埗涓欐暟锛3鈭4鈭5
绛旓細=锛1-1/4锛夛細1锛氾紙1+1/4锛=3/4:1:5/4 =3:4:5 鐢叉瘮涔欏皯1/4,涓欐瘮涔欏1/4,鐢ㄦ渶绠鏁存暟姣旇〃绀虹敳锛氫箼锛氫笝=3:4:5
绛旓細姣斿锛氱櫧鍏40鍙紝榛戝厰姣旂櫧鍏斿皯浜鍒嗕箣涓锛閭ｄ箞锛岄粦鍏斾负40*锛1锛1/5锛=32鍙 鍙嶈繃鏉ワ紝榛戝厰32鍙紝鐧藉厰姣旈粦鍏斿浜斿垎涔嬩竴锛岄偅涔堬紝鐧藉厰涓32*锛1+1/5锛=38.4鍙
绛旓細鐢叉《涓殑姘存瘮涔欐《涓緱澶鍥涘垎涔嬩竴 涔妗剁殑姘存瘮鐢叉《灏1-1/(1+1/4)=1/5 涓欐《姘存瘮鐢叉《姘村皯鍥涘垎涔嬩竴 鍥犳锛氫笝妗舵按灏 璁剧敳妗剁殑姘存槸x 鍒欎箼鏈夋按 x/(1+1/4)=x/(5/4)=0.8x 涓欐《鏈夋按 x-x/4=3x/4=0.75x 鈭0.8x>0.75x 鈭翠箼妗舵按澶氾紝涓欐《姘村皯 ...
绛旓細浠ヤ箼妗剁殑姘翠负鍗曚綅涓锛岀敳妗剁殑姘翠负锛1+1/4=5/4 浠ヤ笝妗剁殑姘翠负鍗曚綅涓锛屼箼妗剁殑姘翠负锛1-1/4=3/4锛屽嵆涔欐槸涓欑殑3/4锛屽弽涔嬶紝涓欐槸涔欑殑锛1梅 3/4=4/3 鍗充互涔欎负鍗曚綅涓锛屼笝鏄涔欑殑4/3.姣旇緝4/3鍜5/4锛屽垎姣嶇粺鍒嗗緱锛16/12 鍜 15/12 鍙鏄笝妗剁殑姘村銆傚浜嗭細16/12 - 15/12=1/...
绛旓細鐢蹭箼涓涓変汉杩涜閿荤偧,鐢茶蛋鐨勮矾绋姣斾箼澶氬洓鍒涔嬩竴,涔欒蛋鐨勮矾绋姣斾笝灏戝洓鍒嗕箣涓,鐢茬敤鐨勬椂闂存瘮涔欏浜斿垎涔嬩竴,涔欑敤鐨勬椂闂存瘮涓欏皯鍏垎涔嬩竴,鐢蹭箼涓欎笁浜虹殑閫熷害鏄灏?... 鐢蹭箼涓欎笁浜鸿繘琛岄敾鐐,鐢茶蛋鐨勮矾绋嬫瘮涔欏鍥涘垎涔嬩竴,涔欒蛋鐨勮矾绋嬫瘮涓欏皯鍥涘垎涔嬩竴,鐢茬敤鐨勬椂闂存瘮涔欏浜斿垎涔嬩竴,涔欑敤鐨勬椂闂存瘮涓欏皯鍏垎涔嬩竴,鐢蹭箼涓欎笁...
绛旓細1锛1/4锛5/4锛鐢叉《涓殑姘存槸涔妗鐨4鍒嗕箣5 5/4脳锕1锛1/4锕氾紳5/4脳3/4锛15/16锛屼笝妗朵腑鐨勬按鏄箼妗剁殑16鍒嗕箣15 鍥犱负5/4锛1锛15/16锛屾墍浠ワ紝涔欐《鐨勬按姣斾笝妗剁殑澶氥
绛旓細鍋囪涔鏁版槸1锛岄偅涔堢敳鏁板氨鏄 1鈥1/4=3/4锛3/4:1=(3/4脳4):(1脳4)=3:4 鐢叉暟涓庝箼鏁扮殑姣旀槸3:4
绛旓細鐢叉暟锛涔鏁=锛1-1/4锛:1=3/4:1=3:4
